Pipe joint



Nov. 20,1923; 4

' A. T, M WANE PIPE JOINT Filed May 23. 1922 Patented Nov. 20, 19.23.

UNHTE TAE tam PIPE JOINT.

Application filed May 23, 1922. Serial No. 563,033.

To all whom it may concern:

Be it known that I, Anrncn T. MQWANE, a citizen of the l'nited States. residing at Birniingham. in the county of Jetl'erson and State of rhltllltllllti, have invented a new and useful Pipe Joint. of which the following s a specification.

It is the object of this inventionto provide novel means for holding and advancing a gland in a pipe joint. a novel anchorage being atl'orded, and advantage being taken of a standard and known form of bell and spigot pipe. without working any changes therein.-

Specifically, the invention aims, among other objects, to provide. novel means whereby the anchors will cooperate with cams on a compression member or sleeve, to hold the sleeve in advanced position with respect to the gland or packing.

It is within the province of the disclosure to improve generally and to enhance the utility of devices 01 that type to which the invention appcrtains.

\Vith the above and other objects in View which will appear as the description pro coeds. the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed. it being understood that, within the scope of what isclaimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in longitudinal section, a. device constructed in accordance with the invention; Figure 2 is a cross section on the line 2-2 of Figure 1: Figure 3 is a top plan of the sleeve or compression member; Figure 4 is a fragmental longitudinal sec tion taken, approximately on the line 44 of Figure 1.

The numeral 1 marks a pipe having a bell 2 provided with an internal circumferential seat A pipe 4 extends within the hell 2 and has a bead 5. It will be understood that the pipe 1 may terminate in such an element as the part. 6 and that the pipe 4 may terminate in a bell like the part 2, the construction above alluded to, including the seat 3. being standard and known.

A packing 6, of jute or any other suitable material, surrounds the pipe 4 and cooperates with the bead 5 and with the bell 2. i

A metal ring 7, which may be divided transversely, extends about the pipe 4 and engages the packing 6. The packing 6 and the ring 7 may be alluded to as a gland.

Anchors 8 are located within the bell 2 and extend longitudinally thereof. Each anchor is provided with a transverse rib 9 engaged in the seat 3 of the hell 2 and holding the anchor against longitudinal movement. The inner end edge of each anchor S is inclined and is provided, if desired, with teeth 10.

A sleeve or compression member 11 is lo-' cated about the pipe 4, the anchors 8 being disposed between the sleeve and the bell. The sleeve or compression member 11 is divided longitudinally, to form laterally separable parts, the longitudinal edges of the parts of the sleeve 11 being supplied with outwardly projecting flanges 12. At their inner ends, the parts of the sleeve 11 are supplied with transverse circumferential cams 14 which slope in opposite directions, as shown in Figure 3, tlie inclined teeth-carrying edges of the anchors 8 being adapted to cooperate with the cams 14, in a way to be described hereinafter.

A tightening device is provided, the same including a ring 15 made up of two parts having beveled ears 16, through which a bolt 17 or other securing element passes loosely. The parts of the ring 15 are supplied with ears 18 connected by a securing element 19, such as a bolt. The tightening device comprises a ring 20. made like the ring 15. Draw bolts 21 are supplied, the same passing slidably through the rings 20 and 15. Each draw bolt 21'has a foot 22 provided with a projection 23 adapted to engage the ring 20 relatively close tothe pipe 4. Nuts 24 are threaded on' the draw bolts 21 and engage the ring 15. The ring 15 is placed about the bell 2 and engages the same. the ring 20 being placed about the pipe 4, in engagement with the outer end of the compression member or sleeve 11.

Assumin that, the parts are arranged as shown in F igure. 1. it. will be obvious that by rotating the nuts 24, the draw bolts 21 will be, retracted and the ring 20 will advance the compression member 11 against the gland composed of the packing 6 and the ring 7. The ring 7, it should be observed. bridges the space between the ends of the cams 14 and prevent. the packing 6 from blowing into the said spaces.

Assuming that the pipes 1 and 4 lay horizontally, it will be'seen that the anchors 8 may he slid downwardly, along the sides of the sleeve or compression member 11, the ribs 9 of the anchors engaging in the seat 3 of the bell 2, to prevent the anchors from movin longitudinally. The inclined edges 10 of t 1e anchors, cooperating with the came 14 on the parts of the sleeve 11, will hold the sleeve in any position to which it may have been advanced. The ends of the anchors project beyond the hell 2 as shown in Figure 1, and consequently the anchors may be tapped down, along the sides of the compression member or sleeve 11,.to enhance the hold of the anchors on the cams 14. It is to be observed that if any looseness exists in the joint, after an extended period of use, the anchors 8 will tend to crawl downwardly, by their own Weight, along the cams 14, the sleeve or compression member thus being held in advanced position.

When the parts have been duly assembled, the tightening device, composed of the rings 15 and and associated parts, ma be remhved. The tightening device may be opened when the securing, element or bolt 19 is removed, the bolt 17 acting as a hinge, because it is received loosely in the cars 16'.

The device forming the subject matter of this application is so constructed that a tight joint adapted to withstand high pressure, will be secured, without the use of lead orjsimilar metal, it being unnecessary to melt and pour the lead to secure a tight mmass joint, as-is commonly done in the present state of the art.

Having thus described the invention, what is claimed is 1. In a device of. the class described, a first pipe having a bell provided with an internal circumferential seat; a second pipereceived in the bell; a gland in the bell about the second pipe; a compression member interposed between the second pipe and the bell and engaging the gland, the compression member carrying a cam which is inclined circumferent-ially thereof; and an anchor cooperating with the cam, the anchor comprising a part engaged in the seat of the bell.

In a device of the class described, a first pipe having 'a bell provided with an internal circumferential-seat-f a second pipe received in the bell; a gland in the bell about the second pipe; a compression member in terposed between the second pipe and the bell and engaging the gland, the compression member having a circumferentially extended cam; and an anchor cooperating with the cam, the anchor comprising apart engaged in the seat of the bell and cooperating with the seat of the bell to hold the anchor in the bell for circumferential movement therein, but against longitudinal movement.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature.

ARTHUR T, MCWANE. 

